EP0998627B1 - Abgasreinigungsanlage für das abgas eines dieselmotors - Google Patents

Abgasreinigungsanlage für das abgas eines dieselmotors Download PDF

Info

Publication number: EP0998627B1
Authority: EP; European Patent Office
Prior art keywords: exhaust gas; exhaust pipe; exhaust; catalyst; control system
Prior art date: 1997-07-24
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Expired - Lifetime

Application number

EP98945015A

Other languages

German (de)

English (en)

French (fr)

Other versions

EP0998627A1 (de

Inventor

Wieland Mathes

Frank Witzel

Steffen Schnapp

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Siemens AG

Siemens Corp

Original Assignee

Siemens AG

Siemens Corp

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1997-07-24

Filing date

1998-07-21

Publication date

2002-10-02

1998-07-21 Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG

2000-05-10 Publication of EP0998627A1 publication Critical patent/EP0998627A1/de

2002-10-02 Application granted granted Critical

2002-10-02 Publication of EP0998627B1 publication Critical patent/EP0998627B1/de

2018-07-21 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Images

Classifications

- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2066—Selective catalytic reduction [SCR]
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/90—Injecting reactants
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
- B01D53/9454—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific device
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
- F01N13/0093—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series the purifying devices are of the same type
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
- F01N13/0097—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series the purifying devices are arranged in a single housing
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
- F01N2240/40—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a hydrolysis catalyst
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies

Definitions

the invention relates to an exhaust gas purification system for the exhaust gas of a diesel engine, in which in an exhaust pipe Injection device for a reducing agent, a mixing device and a catalyst device are arranged.
SiNOx exhaust gas purification system from Siemens AG, Berlin and Kunststoff, Germany (Company brochure "SINOx nitrogen oxide reduction for stationary Diesel engines ", Order No. A96001-U91-A232. With such a Plant can reduce the nitrogen oxide emission of a diesel engine be drastically reduced.
SiNOx emission control system works is based on the SCR process (Selective Catalytic reduction).
the nitrogen oxides in the exhaust gas with a reducing agent, such as ammonia or urea in Exhaust pipe mixed, passed into a reactor room and there on the catalyst device to the environmentally friendly Substances hydrogen and nitrogen implemented.
a reducing agent such as ammonia or urea
DE 42 03 807 A1 describes an exhaust gas cleaning system for this purpose known in which an input exhaust pipe perpendicular to Main axis of an exhaust pipe is connected.
Exhaust pipe is an injection device for one Reducing agent, a mixing device and one Catalyst device arranged.
the mixing device is - viewed in the flow direction of the exhaust gas - before Injecting device arranged.
the exhaust gas is introduced tangentially into the exhaust pipe.
the this causes swirl in the exhaust gas via the mixing device for mixing the exhaust gas with that via the injection device introduced reducing agent used.
such a disadvantageously carries out tangential insertion caused twist to a Uneven distribution of the exhaust gas along the radial direction.
the achievable mixing of the exhaust gas with the reducing agent is unsatisfactory, especially since the injection device is central is arranged in the middle of the exhaust pipe.
DE 36 42 612 A1 also describes an exhaust gas cleaning system is known, in which the exhaust gas directly in the area of an injection device is redirected for the reducing agent solution, flow elements being arranged in this area at the same time are that reduce the flow cross-section and thereby a mixing of the injected reducing agent with the Cause exhaust gas.
a deflection of the exhaust gas is provided, so that an uneven distribution the exhaust gas flow and in particular a one-sided Flow profile is generated.
the object of the present invention is an exhaust gas purification system of the aforementioned type in such a way that in the case of a short spraying section, an even distribution of the reducing agent is ensured in the exhaust gas.
a mixing device is in front of the Injection device and a further mixing device between arranged the injection device and the catalyst device.
This further mixing device is on one Place where the exhaust pipe for receiving the Catalyst device expanded.
the input exhaust pipe is aligned along the main axis of the exhaust pipe. With in other words, it takes place when flowing through the inlet exhaust pipe there is no deflection of the exhaust gas into the exhaust pipe.
the exhaust gas is introduced parallel to the exhaust pipe.
the catalytic converter device can comprise several levels, each of which is an SCR catalyst module. deviant However, the catalyst device can also have several of these Levels include, the first level of which is a hydrolysis catalyst module and every further level an SCR catalytic converter module is.
an exhaust gas A is emitted from a diesel engine (not shown), which is passed (for example via a compressor or turbogenerator not shown) into an input exhaust pipe 1 and into an exhaust pipe 2 connected to it.
the input exhaust pipe 1 is aligned along the main axis of the exhaust pipe 2.
the exhaust gas is not redirected.
a static mixing device 4 in particular designed according to EP 0 594 657.
an injection device 6 for a reducing agent r is arranged downstream.
This reducing agent can be ammonia (NH 3 ), but in particular an aqueous solution of urea.
the exhaust pipe 4 widens to accommodate a catalytic converter device 10.
this catalytic converter device 10 comprises three levels I, II and III arranged one above the other. Each of these levels I, II and III is an SCR catalytic converter module 12 and serves to remove nitrogen oxides (NO x ) in the exhaust gas A.
the exhaust gas A ′ cleaned in this way leaves the exhaust pipe 2 via an outlet opening 14.
a second exhaust gas cleaning system is provided, which corresponds to that in FIG. 1 in the lower region.
the first level is I formed as a hydrolysis catalyst module 22.
the third exhaust gas purification system according to Figure 3 corresponds largely that of Figure 1.

Landscapes

Engineering & Computer Science (AREA)
Chemical & Material Sciences (AREA)
Combustion & Propulsion (AREA)
Chemical Kinetics & Catalysis (AREA)
General Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Health & Medical Sciences (AREA)
Environmental & Geological Engineering (AREA)
General Chemical & Material Sciences (AREA)
Oil, Petroleum & Natural Gas (AREA)
Analytical Chemistry (AREA)
Biomedical Technology (AREA)
Toxicology (AREA)
Exhaust Gas After Treatment (AREA)
Treating Waste Gases (AREA)

EP98945015A 1997-07-24 1998-07-21 Abgasreinigungsanlage für das abgas eines dieselmotors Expired - Lifetime EP0998627B1 (de)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
DE19731865		1997-07-24
DE19731865A DE19731865C2 (de)	1997-07-24	1997-07-24	Abgasreinigungsanlage für das Abgas eines Dieselmotors
PCT/DE1998/002048 WO1999005402A1 (de)	1997-07-24	1998-07-21	Abgasreinigungsanlage für das abgas eines dieselmotors

Publications (2)

Publication Number	Publication Date
EP0998627A1 EP0998627A1 (de)	2000-05-10
EP0998627B1 true EP0998627B1 (de)	2002-10-02

Family

ID=7836772

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP98945015A Expired - Lifetime EP0998627B1 (de)	1997-07-24	1998-07-21	Abgasreinigungsanlage für das abgas eines dieselmotors

Country Status (9)

Country	Link
US (1)	US6401455B1 (es)
EP (1)	EP0998627B1 (es)
JP (1)	JP3283868B2 (es)
KR (1)	KR100370806B1 (es)
AT (1)	ATE225461T1 (es)
DE (2)	DE19731865C2 (es)
DK (1)	DK0998627T3 (es)
ES (1)	ES2185214T3 (es)
WO (1)	WO1999005402A1 (es)

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1997
- 1997-07-24 DE DE19731865A patent/DE19731865C2/de not_active Expired - Fee Related
1998
- 1998-07-21 EP EP98945015A patent/EP0998627B1/de not_active Expired - Lifetime
- 1998-07-21 ES ES98945015T patent/ES2185214T3/es not_active Expired - Lifetime
- 1998-07-21 JP JP2000504361A patent/JP3283868B2/ja not_active Expired - Fee Related
- 1998-07-21 AT AT98945015T patent/ATE225461T1/de active
- 1998-07-21 DK DK98945015T patent/DK0998627T3/da active
- 1998-07-21 DE DE59805835T patent/DE59805835D1/de not_active Expired - Lifetime
- 1998-07-21 WO PCT/DE1998/002048 patent/WO1999005402A1/de active IP Right Grant
- 1998-07-21 KR KR10-2000-7000788A patent/KR100370806B1/ko not_active IP Right Cessation
2000
- 2000-01-24 US US09/491,118 patent/US6401455B1/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
US6401455B1 (en)	2002-06-11
KR100370806B1 (ko)	2003-02-05
ATE225461T1 (de)	2002-10-15
DE19731865A1 (de)	1999-02-04
JP2001511494A (ja)	2001-08-14
DE59805835D1 (de)	2002-11-07
KR20010022216A (ko)	2001-03-15
DE19731865C2 (de)	1999-05-06
WO1999005402A1 (de)	1999-02-04
DK0998627T3 (da)	2003-02-03
ES2185214T3 (es)	2003-04-16
JP3283868B2 (ja)	2002-05-20
EP0998627A1 (de)	2000-05-10

Publication	Publication Date	Title
EP0998627B1 (de)	2002-10-02	Abgasreinigungsanlage für das abgas eines dieselmotors
EP0835160B1 (de)	2000-05-24	Verfahren und einrichtung zum katalytischen reinigen des abgases aus einer verbrennungsanlage
EP1007191B1 (de)	2002-07-24	Statischer mischer
EP0894523B1 (de)	2003-10-01	Verwendung eines statischer Mischers als Hydrilysekatalysator sowie dessen Verwendung in einer Abgasleitung für eine Verbrennungsanlage
EP1206630B1 (de)	2005-03-16	Vorrichtung zum einbringen eines zuschlagstoffes in ein abgas
DE102007051510B4 (de)	2021-02-25	Baugruppe zur Einbringung eines Reduktionsmittels in die Abgasleitung einer Abgasanlage einer Verbrennungskraftmaschine
EP2985434B1 (de)	2018-10-24	Abgasreinigungsvorrichtung für ein fahrzeug, insbesondere für ein nutzfahrzeug
DE102020124106A1 (de)	2021-04-01	Kraftfahrzeugabgasnachbehandlungssystem
DE102011015512A1 (de)	2012-10-04	Kompakte Abgasbehandlungseinheit mit Mischbereich und Verfahren zur Vermischung eines Abgases
WO2009012859A1 (de)	2009-01-29	Baugruppe und verfahren zur einbringung eines reduktionsmittels in die abgasleitung einer abgasanlage einer verbrennungskraftmaschine
EP3406873A1 (de)	2018-11-28	Abgasnachbehandlungssystem für einen verbrennungsmotor
EP3196434B1 (de)	2019-02-06	Scr-abgasnachbehandlungsanordnung
CH705552A1 (de)	2013-03-28	Mischeinrichtung.
DE19731926C1 (de)	1999-01-21	Abgasreinigungsanlage für einen Dieselmotor
EP1651335B1 (de)	2006-11-29	Mischsystem
WO1995026226A1 (de)	1995-10-05	Kombinierte einbring- und mischvorrichtung
WO2008074414A1 (de)	2008-06-26	Abgasrohr für eine abgasanlage einer verbrennungskraftmaschine
WO2017137032A1 (de)	2017-08-17	Mischer zum durchmischen eines abgasstroms einer brennkraftmaschine und abgasanlage
EP3050615A1 (de)	2016-08-03	Strömungseinheit, Abgasreinigungsanlage und Verfahren für eine Abgasreinigungsanlage
DE102013223296A1 (de)	2015-05-21	Einspritzmodul und Abgasstrang mit Einspritzmodul
DE10140295B4 (de)	2004-03-04	Abgasnachbehandlungsvorrichtung für Dieselmotoren
EP3663551B1 (de)	2023-02-15	Vorrichtung zum einbringen und verteilen eines fliessfähigen zusatzstoffs in einen abgasstrom
DE10247987A1 (de)	2004-04-29	Anordnung und Verfahren zur Nachbehandlung des Abgases einer Brennkraftmaschine
WO1999056875A2 (de)	1999-11-11	Katalysatormodul
WO2000003795A1 (de)	2000-01-27	Statischer mischer

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